Phonograph



April 21A, 1942. G. H. 'FRlTzlNGER PHONOGRAPH 4 sheets-snt 1 Filed Feb. 18, 1939 MNH ...zz A

April 21, 1942 G. H. FRITZINGER 2,280,575

PHONOGRAPH Filed Feb.'l8, 1939 4 Sheets-Sheet 2 'Egg April 21, `1942. G. H. FRrrzlNGER PHONOGRAPH Filed Feb. 18, 1939 4 Sheets-Sheet 3 April 2l, 1942. G. Al-. FRrrzlNGER 2,280,575

PHoNoGRAPH Filed Feb. 18, i939 -4 sheets-sheet A oRNEY Patented Apr. 21, i942 iii TATS

rnoNoonArn Application February 18, 1939, Serial No. 257,069

36 Claims. (Cl. 274-17) This invention relates to phonographs, and ing thereof, and. from another View point it demore particularly to phonographs which are sefines the distance of backspacing of the translectively conditionable for recording and reprolating device from a position of farthest advance ducing. The invention is especially concerned of the device. with the provision of novel and improved means A diiculty with an advance device of the for facilitating the use of a recording and reabovementioned type lies in restoring, or getting producing phonograph, and is distinctly adapted back, the device to its initial position when once to enable the operator, While in the process 0f it is moved therefrom by the translating device.

CII

recording, to reproduce or listen hack on pre- The provision of means for'insurng the pIOpeI viously recorded matter, and thereafter to relo restoration' of the advance device encumbers sume recording, with a high degree of facility. the operation of the machine and adds material- While the invention has particular utility, and ly t0 the Complexity of its mechanism.

is shown and described, in connection with a It iS an Obl'eet Of Iny invention t0 DiOVide neW, commercial phonograph or dictating machine, no improved and Simpliiied means fOI perfeiining unnecessary limitation thereto is intended. i5 the functions of the above mentioned ltype of During the process of recording dictation the advance device, and for controlling the same.

operator often nds need to reproduce, or listen It iS enetnei Objeet 0f my inVentiOn t0 DTO- back on, previously recorded matter in order to Vide neW and improved Ineens fol' dening the revive or reconstruct in his mind the run of his dStenCe 0f Spaing 0f the translating deViCe thoughts, 1t is obviously important that the op- 2o from any selected position of the device in its erator be able to reproduce such previously repath.

corded metter with o minimum of distraction. It iS another object of my invention to pro- To this end a dictating machine may Well be fiile ilnDI'OVed Ineens in a recording and IePIO- rendered partially automatic so as to reduce the 3l-lining PliOnOgIeph OI enabling the OPeIatOl' number of manipulations required in the select0 Tepiedile 01 listen back 0n DeVOuSly Te' tive reproduction of previouny recorded matter Corded metter, end thereafter to resume recordand the subsequent resumption of recording. For ing, With e minimum of dStraCtiOn and yet Withexample, when the sound translating device is out otherwise encumbering the operation and/or hackspaced and placed in condition for repro- Centlol of the maehine.

ducing, and the selected previously recorded mat- "o lt iS EinOtnei ObJ'eCt 0f my invention to pro-l ter is then reproduced, the translating device may vide a means for defining the distance `of backbe later automatically conditioned for recording Spacing of the translating device from any Seto permit tho operator to proceed immediately lected position. of the device in its path, which withafurther recording of dictation. Instead of, means is so controlled aS t0 be Operative Only or in addition to, the automatic action of rea When Called nnen t0 DeifOI'In a useful function. conditioning the sound translating device for roit iS e further object of my invention tor procording7 other automatic actions may be desired Vide means OI planing the above mentioned de- Suoh, for example. as a stopping of the machine nning means in operative and inoperative condior a change in the indication of a signalling tions, 2ut Will.

means. However, regardless of the particular i" It is a further Object 0f my inVentiOn t0 Ieautomatic action to be obtained, thereis required StOe the deining means to neutral or initial some means for controlling the time at which 'DOS'GOH as an incident 0f placing the Same in the kaction will occur, this time usually being nopeiatVe Condition. i when the translating device is advanced, subse- Another Object 0f my invention iS t0 Control quent .to abaclspacing thereof, to the point from the defining Ineens S0 es t0 DlaCe the Same in which it Was backspaced or to a predetermined operative condition incidental to a conditioning distance therefrom. To so vcontrol such autoof the Sound translating device for reproducing, metio actions there has been employed en edend to automatically place the de nng means Vano@ 1e-.ooo which is normaux; moved in a, pyoin inoperative condition and to restore the same determined manner omy when the translating ""'J when it has completed its intended function.

device is advanced, the advance device remain- Anetner Object of my invention iS to` place ing in its moved position when the transmting the defining means in inoperative condition and device is backspaced. Such an advance device t0 automatically restore the same as an incidenes the position of farthest advance reached by the translating device prior to a backspacdent to the completion of the performance of its function.

Another object of my invention is to provide improved and simplified means controllable to limit the distance through which the translating device may be manually moved.

Another object of my invention is to provide a recording and reproducing phonograph which is readily controllable to perform all functions relating to the recordation and reproduction of dictation, or the like.

Another object is to provide means, operable at will, for distinguishing between any selected position of the translating device in its path and a position of the device spaced therefrom.

It is a still further object of my invention to provide improved and simplified means for performing automatic operations in the use of the machine when the sound translating device, subsequent to a backspacing thereof, is advanced to a predetermined position relative to the position from which it was backspaced.

Other and allied objects will more fully appear from the following description and the appended claims.

In the description of my invention reference is had to the accompanying drawings, of which:

Figure 1 is a top plan view of a recording and reproducing phonograph incorporating one embodiment of my invention;

Figure 2 is a rear elevational View, partly in section, of a portion of the mechanism of Figure 1,

showing details of the defining means of the machine;

Figure 3 is a right-hand vertical cross-sectional View, taken substantially along the line 3--3 of Figure 1, a portion o'f the carriage for the sound translating device being broken away to better illustrate parts carried by the carriage;

Figure 4 is a fractional top plan view, partly in section, of the mechanism of Figure 3;

Figure 5 is a partial vertical cross-sectional View taken substantially along the line 5--5 of Figure 1;

Figure 6 is a partial vertical cross-sectional view taken substantially along the line 6 6 of Figure 4;

Figure 7 is a partial vertical cross-sectional view taken substantially along the line 'I-'I of Figure 4 Figure 8 is a left-hand vertical cross-sectional view taken substantially along the line 8 8 of Figure 1;

Figure 9 is a partial vertical cross-sectional View taken substantially along the line 9--9 of Figure 8;

Figure 10 is an enlarged fractional view, principally in front elevation but partly in section, showing details of the control means of the machine;

Figure ll is an enlarged View partly in plan and partly in horizontal cross-section on line II--II of Figure 8, showing details of the defining means;

Figure 12 is a right-hand side elevational View of a portion of the mechanism of Figure 1;

Figure 13 is a vertical cross-sectional view taken substantially through the carriage along the line l3-I 3 of Figure 1, but showing mechanism within the carriage in accordance with a second embodiment of my invention;

Figure 14 is a partial vertical cross-sectional View, generally similar to Figure 8, but showing Figure 16 is a partial cross-sectional view taken mandrel 6.

substantially along the line I6-I6 of Figure 13;

Figure 1'7 is a diagrammatic View of mechanism and circuits in accordance with the rst embodiment of my invention; and

Figure 18 is a diagrammatic view of mechanism and circuits in accordance with the second embodiment of my invention.

Reference being had to the figures, particularly to Figures 1 and 3, there will be seen a recording and reproducing phonograph of the dictating machine type incorporating one embodiment ofi my invention. This machine comprises a base= plate I having left and right upright standards 2 and 3 and an intermediate upright standard 4.. In the intermediate standard there is journalledl a shaft 5 carrying a mandrel 6 for supporting a 'Ihe standards 2 and 3 sup-- port front and back longitudinal rods 8 and 9 on. which a carriage I6 is slidably mounted for move- The carriage I6 is pro-- vided with a sleeve II embracing the rod 8 andi` having a flange I I' secured to the carriage by the: The carriage is also provided with a-l forwardly extending arm I5 which overlies the.' In the arm I5 there is a shouldered'. opening I5 forming a seat for a sound translating: device I6 of a type selectively conditionable for.'

cylindrical record 1.

ment along the mandrel.

screws I I.

recording and reproducing. The translating device has an upwardly extending tube I1 (see Figure 3) to which is coupled a flexible speaking tube Il carrying at its outer end a handpiece I8 usable as a mouthpiece during recording and as an earpiece during reproducing. Extending forwardly from the forward left-hand portion of the base plate I is a support I9, curved to t the handpiece i8, for holding the handpiece during the non-use of the machine.

The mandrel 6 is preferably provided with a record holding and ejecting mechanism of the type disclosed in Gramann Patent No. 2,010,717, issued August 6, 1935, and entitled Phonograph This mechanism may be sufficiently described in the present instance as follows: A slidably mounted disk member I2 is provided at the left end of the mandrel and is biased rightwardly to abut against the left end of the record. At the open end of the mandrel there is provided an expansible and contractible chuck I3 which is rendered free to expand when the disk member I2 is moved leftwardly as by the mounting of a record on themandrel. Such expansion of the chuck I3 causes the record to be held in a mounted position on the mandrel against the biasing of the disk member I2. Te remove the record from the mandrel the chuck I3 is contracted by moving a handpiece I4, carried at the open end of the mandrel, in a leftward direction. Upon the contraction of the chuck I3 the record is ejected by the disk member I2,-and the chuck I3 is then releasably locked in a contracted position as an incident to such ejection.

Geared to the mandrel shaft 5, by a train of gears 24 is a feed screw 25 for advancing the carriage along the mandrel-i. e., from left to rightcoincidentally with a rotation of the mandrel.

The feed screw 25 is rotatably supported by the standards 2 and 3, and is engaged by a feed nut 26 carried by a bracket 21 having left and right turned over lugs 28 which are pivoted on a cross rod 29 carried by the carriage, as shown in Figures 3 and 4. The feed nut 26 is normally held in engagement with the feed screw 25 by a tension spring 36 connected between a cross rod 3| on the carriage and an arm 32 extending upwardly from the left one of the lugs 28.

The mandrel shaft may be rotatably connected with a drive pulley 2B, which is rotatably supportedby the standard 2 with its axis in line with the mandrel shaft, by means of a clutch mechanism C. This mechanism comprises a toothed clutch member 2l on the inner side of the pulley 29 and another similar toothed clutch member 22 which is splined to the shaft 5 by a pin and slot arrangement of which the pin appears as 23. The clutch member 22 is thus movable along the shaft 5 into and out cf engagement with the clutch member 2l to connect the pulley 2t with the mandrel shaft 5. at will.

The drive pulley 2H may be driven by a motor M, represented diagrammaticaily in Figure 17, which may be mounted below the base plate i and be coupled to the pulley by a belt (not shown), the base plate i having an opening 25 through which the belt may pass. The motor M is serially connected in a power supply circuit 33 adapted to make connection with a suitable source of power by way of a plug 34. In the power supply circuit 33 is a switch 35, diagrammatically shown in Figures 3 and 17, which is selectively closeable and openable to start and stop the motor M. The switch 35 is usually controlled by the handpiece support i3 in a manner to cause the switch to be opened and closed when the handpiece i3 is respectively placed on and removed from its support. Reference being had to Figure 3, it will be seen that the handpiece support i9 is pivoted, by a pin 3i?, to a raised portion 3l of the base plate having an opening 37 from which the support I9 projects. In contact with the underside of the support I9 is a push button 35' of the switch 35 which is biased upwardly to urge the switch 35 into closed position and to urge the support i9 upwardly. When the handpiece IS is placed on the support IQ the weight of the handpiece causes the support to be moved downwardly and the switch 35 to be moved, against its biasing, into open position. By this means the power supply to the phonograph is shut off to stop the motor M when the handpiece i3 is placed on its support i9, the power supply being restored to start the motor M when the handpiece is removed from its support.

During the use of the machine the handpiece I8 is held in the hand and the motor M is in continuous operation. Engagement of the clutch mechanism C then places the mandrel 8 and feed screw 25 in rotation, the rotation of the feed screw normally causing, as whenever the feed nut 25 is engaged therewith, a feeding of the carriage and sound translating device l5 along the mandrel, as from its left-ward or initial position to its rightward or terminal position.

To operate the clutch mechanism CI there is prvoided a vertically disposed lever Sii pivotally supported by a bracket 38 (see Figures l and 3) secured to the intermediate standard 4. The lever 33 carries at its upper end portieri a pin 4 which engages an annular` groove 4l in the clutch member 22. The lower portion o1 the lever 33 extends downwardly through the opening 23 in the base plate l, and is pivotally connected to a link 42 which in turn is pivotally connected to an operating arm 43 of a suitable clutch actuating mechanism 44 shown diagrammatically in Figure 1. This actuating mechanism may very desirably be in theform of an electromagnetic device such as is described in Langley Patent No. 1,380,486Jv issued June '7, 1921 and entitled Controlling device.

An actuating mechanism of the form above mentioned is well known in the art and may be suinciently illustrated in the present instance by its schematic showing in Figures 17 and 18. This mechanism comprises start and stop coils 45 and 46 selectively energizable to attract an armature 4'! pivoted as at 44 and coupled by the aforementioned arm 43 to the link 42. When a circuit is established to cause current to flow through the start coil 45, the armature 41 is swung in the direction of that coil to cause the clutch C to be engaged. At the same time the circuit of the start coil 45 is broken and the circuit of the stop coil is prepared for operation, by means of a single-pole double-throwswitchcomprising a pole member 49, controlled by the armature 4l, and contact members 58 and 5I respectively serially connected in the circuits of the start and stop coils 45 and 46. When the stop coil 46 is next energized, the reverse operation takes place: the clutch C being disengaged, the circuit through the stop coil 4S being broken, and the circuit of the start coil 45 being again prepared for operation.

To control the clutch actuating mechanism 44 there is provided 4a hand switch 52 of the singlepole double-throw variety, which is commonly mounted on the handpiece i3 for ready manipulation during the use of the machine. The switch 52 comprises a pole member 53 and contact members 54- and 55, and is provided with a cover 56 pivoted to the handpiece as at 5l and having a boss 58 contacting the pole member 53. The pole member 53 is biased to normally make connection with the Contact member 54 and to hold the cover 56 in an outward position, as is shown in Figure l, this being the stop position of the hand switch. When the cover 55 is moved inwardly, as by the grasp of the hand, the pole member 53 makes contact with the contact memoer 55, this being the start position of the hand switch. The hand switch 52 is connected to the clutch actuating mechanism 44 by a three-wire cable 55 which extends within and along the speaking tube Il and then onwardly within a flexible protective casing 5t. This connection is schematically shown in Figure 17 and is such that the pole member 53` is connected to the power supply circuit 33 on the side opposite to that connected to the switch pole 49 of the actuating mechanism 44, the contact members 54 and 55 being connected respectively to the stop and start coils 4E and 45. Thus, when the cover 55 is moved inwardly into start position, the start coil 45 is energized to engage the clutch C, and when the cover 55 is released into stop position, the stop coil 4B is energized to disengage the clutch.

The carriage feeding means is operable only to advance the carriage at a slow steady rate of speed. Any other movement of the carriage required in the use of the machine such, for eX- ample, as a baclrspacing or returning of the carriage along its path is preferably manually performed. To manually move the carriage the feed nut 2t must be rst disengaged from the feed screw 25. This may be done at will by means of a forwardly extending control member 5I slidably mounted on the left side 0f the carriage arm I5 by means of a pair of shoulder screws 52 which pass respectively' through a` pair of elongated slots 53 in the control member to thread into the carriage arm.

The control member 6l has a finger-piece GII at its forward end adapted to facilitate the manipulation of the control member. The rearward end portion 6I of the control member is offset to the left and provided with a transverse groove 65 through which passes a shoulder screw 65 threading into `an ear 81 provided on a collar 68. This collar is positioned to the left of the carriage and is rotatably mounted on the sleeve lI but is restrained against longitudinal movement on the sleeve by a pair of collars to its right, hereinafter described, and by a stop collar 69, to its left, which is secured to the sleeve II by a set screw 58. As the control member 6I is moved rearwardly the collar 68 is turned in a clockwise direction to operate suitable means to disengage the feed nut from the feed screw, as is now described.

Secured as by welding to the collar 68 is a bar 10 which extends rightwardly along the sleeve I I and into the carriage by way of an opening 1I provided in the left wall thereof. Spaced in a clockwise direction about the sleeve II from the right end portion of the bar 18 is a pin 12 carried by a collar 13 which is rotatably mounted on the sleeve within the carriage adjacently of the right wall thereof. The collar 13 has a raised cam 14 which is arranged to contact a forwardly extending arm on the feed nut supporting bracket 21 when the collar 13 is turned in a clockwise direction, such contact causing the bracket to be tilted so as to move the feed nut out of engagement with the feed screw. The collar 13 is, however, biased to normally maintain the cam 14 free of the arm 15 to permit the feed nut to normally engage the feed screw as by the spring 38. To obtain this biasing, the collar 13 is splined to the longitudinal rod 8 by extending the pin 12 into engagement with a longitudinal groove 16 in the rod (the sleeve Il being apertured to permit the pin 12 to pass suitably therethrough), and the rod 8 is biased in a counter-clockwise direction, as viewed from the right, by means of a torsional spring 11 (see Figure l) secured to the rod by a pin 18 and to the standard 2 by a pin 19, the rod being restricted in its counter-clockwise movement by the contact of an arm 80 (see Figure l2) secured to the rod at the right end thereof, with a pin 8| on the standard 3..

The control member 6| is urged forwardly by means of a tension spring 82 connected between a leftwardly extending lug 83 on the carriage arm I5 and the rearward portion 6I of the control member. Extending forwardly from the carriage arm I5 to the right of the control member 6I is a position defining member 84 for the control member. When the control member BI is moved rearwardly from its released or operating position shown in Figure 4 to a point substantially midway of its released position and a constrained position where the iingerpiece 64 is just flush with the dening member 84-which constrained position is hereinafter called the backspacing position of the control member-the collar 68 is turned sufficiently to bring the bar 18 into contact with the pin 12; further rearward movement of the control member 6! from its above mentioned mid to backspacing position causes the collar 13 to be turned in a clockwise direction, as by the contact of the bar 18 with the pin 12. Such turning of the collar causes the cam 14 to slidably contact the arm 15, thereby moving the arm downwardly to disengage the feed nut from the feed screw. Upon the release of the control member BI the cam 14 is moved free from the arm 15 by the spring 11, the feed nut then moving back into engagement with the feed screw as by the spring 30. (It will be seen that the movement of the control member 6I from released to mid position mentioned above constitutes a lost mo tion; this is done for reasons hereinafter explained.)

The sound translating device I 6 may be of any suitable variety which is selectively conditionable for recording and reproducing. For the purpose of illustrating my invention, a form of sound translating device is described which is well known in the art. This sound translating device may in the present instance be sufficiently described by the statement that it comprises a circular frame bearing the aforementioned sound tube I1' (to which the speaking tube I1 is coupled) and a downwardly extending lug 86 to which is pivoted a sound box 81 and a biasing weight 38, the weight and sound box being substantially concentrically disposed relative to the frame 62 and the weight being directly beneath the sound box. operatively associated with the sound box 81 is a recorder stylus 89 and with the biasing weight 88 is a reproducer stylus 98, these styli being respectively controllable for movement into and out of contact with the record 1. The sound box and biasing weight are retainable in upward or raised positions free of the record and are releasable to move, as by gravity, towards the record. When both the biasing weight 88 and sound box 81 are released, they assume respective positions relative to the record, as shown in Figure 3. The sound box and biasing weight are then so positioned relative to the record as to maintain the recorder stylus 89 in contact with the record so as to condition the translating device for recording. Sound waves which are then conducted into the sound box 81, as by way of the speaking tube I1, will actuate the recorder stylus to form on the record, as the record is rotated and the translating device is fed therealong, a continuous groove having modulations in accordance with the sound waves.

When only the biasing weight 88 is released for free downward movement towards the record, the sound box 81 being retained in an upward or raised position, the reproducer stylus 90 is brought into contact with the record and the sound translating device is conditioned for reproducing. When the translating device is so conditioned vibrations imparted to the reproducer stylus, as it tracks a modulated groove of a rotating record, are transmitted to the sound box 81 to create sound waves therewithin in accordance with the modulations of the groove being tracked, these sound waves being conducted away from the translating device by the speaking tube I1.

When both the sound box 81 and biasing weight 88 are maintained in raised positions, both the recorder stylus 89 and reproducer stylus 98 are held out of operative relationship, or contact, With the record to place the translating device in an inoperative condition.

With the above arrangement of sound translating device, it is seen that when the biasing weight 88 is maintained in a raised position, the sound box 81 is necessarily also maintained in a raised position to place the translating device in inoperative condition. Upon releasing only the biasing weight from such raised position the translating device will be conditioned for reproducmg; whereas upon releasing both the biasing weight and sound box the translating device will be conditioned for recording. Thus the translating device is rendered inoperative or operative by merely raising or lowering the biasing weight, and when rendered operative it is selectively conditionable for reproducing and recording by raising and lowering the sound box.

The means for selectively placing the sound translating device into inoperative condition and respective operative conditions for recording and reproducing comprises a pair of angular lifting ngers 9i and 92 respectively adapted to contact a tab 93 on the sound box and a lug Sii on the biasing weight to hold the sound box and weight in raised position. The lifting fingers 9i and 92 are each pivoted on the cross rod 29 and are held in spaced relationship thereon by the spacers 95. Extending upwardly from the respective fingers SI and 92 are relatively short arms SI and 92 and connected between the respective arms Si and 92' and the cross rod 3l are tension springs 96 and Si, which springs urge the fingers 9| and 92 each upwardly. The finger 92, which controls the biasing weight 88, is normally held in a downward position free from the biasing weight by the contact of a lug 9! on the collar i3 with a cam face 99 on the inner edge of the finger, as is shown in Figure 3. The translating device is thus normally placed in operative condition by reason of the biasing weight 88 be-l ing normally released, but whenever the collar '13 is turned in a clockwise direction, as when the feed nut 2t is disengaged from the feed screw 25, the lug 93 moves downwardly and away l from the cam face 99 to permit the finger 92 to move upwardly to hold the biasing weight 88 in raised position, thereby placing the translating device in inoperative condition. Thus movement of the control member 6l to back-spacing position not only disengages the feed nut 26 from the feed screw 25 but also places the translating device in inoperative condition, the release of the control member causing the feed nut to re-engage the feed screw and the translating device to return to operative condition. i

When the translating device is rendered operative it will be conditioned for recording or reproducing depending on whether the lifting nnger SI, which controls the sound box 81, is in a downward position free from the sound box or in a raised position to hold the sound box away from the record. To control the lifting finger QI a collar mii is rotatably mounted on the sleeve I I within the carriage to the left of the collar 13. Secured to the collar Ii is a control lever IIlI which extends upwardly through an opening |02 in the top of the carriage. The collar IMI controls the lifting finger 9i by the contact of a lug I [i3 on the collar (which is in all respects similar to the lug 98 on the collar 13) with a cam face IBI! on the lifting finger. When the control lever IBI is moved forwardly into recording position, the position it occupies in Figure 3, the lifting finger SI is held by the lug m3 in a downward position free from the sound box 8l, as is shown in Figure 6. The translating device is then, as whenever it is rendered operative, conditioned for recording. (The upward urging of the linger SI tends to move the control lever lill out of recording position but this is prevented by the provision of a detent I on the finger, shown in Figure 6.) When the control lever IUI is moved rearwardly into a substantially vertical position, hereinafter called its reproducing position, the lug ID3 is moved downwardly and away from the cam face IM to permit the finger 9i to move upwardly to hold the sound box in a raised po- Sition. The translating device is then, as whenever it is rendered operative, conditioned for reproducing.

In accordance with my invention I provide simple and generally improved means for `automatically controlling a phonograph in such respects as will enable theV operator to reproduce previously recorded matter, at will, and thereafter to resume recording, with a minimum of distraction. While, in accordance with my invention, some operations in the use of the machine are automatically performed, this is not done at the expense of encumbering the performance of other operations necessary to the complete functioning of the machine. On the contrary, it is a feature of my invention to provide such simple and improved means as will enable the operator to readily control al1 functions of the machine. To this end the phonograph is arranged so that it may be readily conditioned to have certain automatic features to facilitate the reproduction of selected portions of previously recorded matter, as during the process of recording, or to have these automatic features removed to permit the machine to be used with facility for the sole purpose of reproducing.

In the first embodiment of my invention the automatic features include the automatic conditioning of the machine for reproducing incidental to a backspacing of the translating device, and the automatic conditioning of the machine for recording when the translating device is next advanced to a predetermined position relative to the position from which it was backspaced. The first of these automatic features-the conditioning of the sound translating device for reprod-ucing incidental to its .backspacing-may now be described.

In order to backspace the carriage it is essential that the feed nut 26 be disengaged from the feed screw 25; it is moreover important that the translating device be rendered free from the record-. e., placed in inoperative condition so that the record may not be scratched or marred in any way by the styli during the backspacing of the carriage. These functions of'disengaging the feed nut from the feed screw and of placing the sound translating device in inoperative condition are each performed incidental to the movement of the control member El to backspacing position, as hereinbefore described. In order that such movement of the control member BI may also perform the function of turning the collar IB@ into reproducing position so as to cause the translating device to be conditioned for reproducing when the control member is released, the collar` G3' is coupled with the col-lar IEl by means of a pair of collars W5 and H33 each rotatably mounted on the sleeve II between the collar G8 and the left wall of the carriage. The collar H25, which is adjacent to the collar'8, is provided with an upwardly extending lug It? "in which is pivoted, by va pivot screw Il, a short transverse lever |68. This lever extends leftwardly into a position between a -pair of shoulders Iil9 and |09 provided on the collar 68, the shoulders being formed by the provisionof an open sector in a flange segment I lil which extends rightwardly from the rim ,of the collar 68', as is shown in Figures l, 4, 5 and l0. The collar IBB, which is interposed between the collar IE5 and the left wall of the carriage," has an upwardly extending ear H'carrying' a cross pin H2. This .pin extends leftwardly to normally contact the lug |01 and rightwardly through an arcuate opening H3 in the left wall of the carriage to normally Contact a radially extending pin H4 provided in the collar |00, the contact of the pin H2 with the lug |01 and pin H4 occurring on the sides of the lug |01 and pin H4 which are clockwise therefrom relative to the sleeve l IThe pin l2 is normally urged against the pin H4 .by a torsional spring H5 connected between the pin H2 and a lug H6 extending downwardly from the collar |00. The collar |05 is biased in a counter-clockwise direction but is restrained against counter-clockwise movement from the position it occupies in Figures 1, 4 and 5, as is hereinafter described. When the collar is in such restrained position the lever |08, by its Contact with the shoulder |09 defines the released position of the forwardly urged control member 6| When the control member 6| is moved rearwardly from released to mid position aforementioned the lever |08 is brought into contact with the` shoulder |09 (and the bar 10 into contact with the pin 12 as aforementioned). Further rearward movement of the control member 6| to backspacing position, causes the collars 68, |05, |06 and |00 to turn in unison, the collar |05 being turned by the collar 68 by the contact of the shoulder |09 with the lever |08, the collar |06 being turned by the collar |05 by the contact of the lug |01 with the pin H2, and the collar |00 being turned into its reproducing position by the collar |06 by reason of the resilient coupling of the pin ||2 with the pin H4. Upon the release of the control member 6| the collar |00 remains in its reproducing position but the collar B8 returns, in a counter-clockwise direction, to restore the translating device to operative condition and to re-engage the feed nut -with the feed screw, the operative condition of the translating device being now in a condition for reproducing.

The automatic conditioning of the sound translating device for recording, subsequent to the conditioning of the machine for the selective reproduction of previously recorded matter, is controlled by a novel and improved means for defining the distance of spacing of the sound translating device from any desired position of the device in its path. In accordance with my invention this defining means is so controlled as to be normally retained in inoperative condition, and to be placed in operative condition only as an incident of conditioning the machine for selectively reproducing recordations as noted above. Such control of the defining means is highly useful in simplifying the operation of the machine. For example, the defining means may be retained in a neutral or unoperated position when it is in inoperative condition, as by a biasing thereof, and may be put into operation only when called upon to perform a useful function of definition. After the defining means, lby its movement from neutral position, has performed its normal function, it may -be automatically put out of operation as an incident to the completion 0f the performance of its function. When the defining means is put out of operation it may be automatically restored, by its own biasing, to neutral position. Thus the defining means may .be automatically restored for operation from any desired position of the translating device in its path, either as an incident to the completion to the performance of its normal function or, as

later described, as an incident to the performance of a manipulation on the machine.

Reference being had to Figures 1, 2, 3, 4 and 11 it will be seen that the defining means comprises a disk-shaped defining member H1 having a hub I8 pivotally mounted on the back longitudinal rod 9 between the left and right walls of the carriage I0. The defining member ||1 carries a defining pin H9 and is biased in a clockwise direction, as viewed from the right, by means of a torsional spring hooked at one end to the defining member H1 as at |2| and connected at its other end to a pin I'22 secured to the left wall of the carriage. Movement of the defining 15j member ||1 in its biased direction is, however, normally restricted to a neutral position as shown in Figures 3 and 9 by the contact of the defining pin H9 with a bar |23 of suitable insulating material which extends rightwardly from ,a spring arm |24. The spring arm |24, and a spring arm which is similar thereto, are mounted insulatedly from each other in cantilever fashion in a stack |26 to form a pair of normally open contacts for a switch |21, as Ashown in Figure 9. The stack |26 and springs |24 and |25 are disposed in a casing |28, the stack being secured to the casing by a screw |26. The casing has an opening |28 at one end from which extends the bar |23 and an opening |28" at the other end from which extends a two-wire cabl'e |29 making connection with the spring arms. The casing |28 is secured, by the pins |30 to a bracket |3| which is secured to the left wall of the carriage |0 by the screws |32, the casing abeing mounted so that the spring arms |24 and |25 extend horizontally along the rear of the carriage in substantially parallel relation to the defining pin I9.

The dening member H1, as because of its 401biasing, normally urges the spring arm |24 downwardly towards the spring arm |25. The biasing of the defining member is, however, insufficient to hold the spring arm |24, against its own biasing, in contact with the spring arm |25, such contact of the spring arms |24 and |25, or closing of the switch |21, being made only when the defining member l1 is driven, in its biased direction, beyond its neutral position.

The driving means for the defining member 5o |`|1 comprises a disk-shaped drive wheel |33 hav- 'ing a hub |33 rotatably mounted on the rod 9 to the right of the defining member ||1 and normally spaced therefrom, the drive wheel being moved along the rod 9 by the carriage by the engagement of the right wall of the carriage withvan annular groove |33 in the hub |33. The defining member is geared to a pinion gear |34 which is pivoted, by a pivot screw |35, to a lug |30 on the lower rearward end of the right wall of the carriage, as is shown in Figure 2. The pinion gear |34 is integrally formed with a spur gear |31 which engages a longitudinal stationary rack |38 disposed in parallel relation to therod 9 and supported on left and right lugs |39 and |40 respectively provided on the left and 'fright standards 2 and 3. By this means the drive wheel is turned in clockwise and counterclockwise directions as the carriage or sound translating device is respectively advanced and backspaced in its path along the mandrel, the drive wheel being turned through substantially one revolution as the translating device is moved through the length of the record.

The dening member H1 carries on its face which is adjacent to the drive wheel |33 an annular pad MI, suitablyof leather or felt (see Figure 2). The pad lill' is normally held out of contact with the drive wheel |33 by means of a compression spring |42 coiled about the rod 9 between the denning member and drive wheel. The defining member may, however, be moved into engagement with the drive wheel at will by a clutch lever |53 which is pivoted on the carriage at a point directly in front of the rod 9, the clutch lever being connected by a pin Ille to a vertical shaft |65 which is pivotally mounted in upper and lower bosses |46 and M1 extending inwardly from the left wall of the carriage. Partially extending through the clutch lever from the inner end thereof is a cylindrical recess |68 (see Figure 11) in which is carried a spherical ball MJS biased outwardly by a compression spring |55 but restricted in its outward movement by a peening of the inner end of the clutch lever. Between the ball and spring is provided a suitable spacer or seat |5| to permit easy turning of the ball. When the clutch lever Ill-3 is moved from a disengaged or inoperative position, suchV as is shown in Figure l, to its engaged or operative position wherein it is substantially vertical to the face lill of the delining member the ball lS is urged against the face ll to hold the dening member lil, against the force of the biasing spring lll?, into frictional engagement with the drive wheel |33. The defining member is then rotatably connected with its drive wheel so as to be turned with a movement of the carriage, the direction of turning being against and with its biasing-i e., counter-clockwise and clockwise-as the carriage is respectively backspaced and advanced along the record.

When the control member 8| is moved to backspacing position the clutch lever H13 is normally moved to engaged or operative Position by means oa link |52 connecting the lug lill of the collar |55 with an arm |53 extending leftwardly from the shaft |45 and secured thereto by a pin |54, the link |52 being pivotally connected to the 111g lili and arm |53 by the respective pins |55 and |55. The clutch lever |133 is biased into disengaged or inoperative position (and the collar |05 is thereby biased in a counter-clockwise direction) by a tension spring |58 connected between the pin |55 and a pin |58 on the left wall of the carriage, the inoperative position of the clutch lever being dened by the contactv of the arm|53 with an edge |51 on the left wall of the carriage. When the clutch lever |43 is moved into its Vengaged position, it is releasably held there by means of a latch |59 having at its end portion a hook |59 (see Figure 8) adapted to catch on an arm |59 of the clutch lever |43, which arm extends leftwardly through an opening iti in the left wall of the carriage. The latch |55 is pivoted by a screw |52 to a stud |63 fastened to the bracket |'3|, and is biased into latching or operative position by a tension spring |65 (see Figures 3 and 8), the latch being held out of operative position when the clutch lever |43 is in its released position by the contact of the arm |85 with the lower edge |59" of the hook |59.

In consideration of the structure so far described, it is seen that when the machine is conditioned for recording the relative positions of its control means are as follows: the control member Si is held by the spring 32 in released position as'denned by the contact of the lever |58 with the shoulder |59; the clutch lever |43 is heldin released or disengaged position by the spring |53; the collar |08, which controls the recording and 'reproducing conditions of the translating device, is in recording position; and the collar It occupies the position shown in Figure 4. When the control member 5| is moved to backspacing position, the following actions occur: the collar I3 is turned by the contact of the bar 'l0 with the pin l2 to disengage the feed nut from the feed screw and to render the translating device inoperative; the collar |55 is turned .by the contact of the shoulder |639 with the lever |98 to place the dening means in operative condition; and the collars lot and lill! are yeach turned by the contact of the lug |52' with the pin ||2, the turning of the latter being from recording to reproducing position and causing the lifting finger 9| to move into its upward position. While the control member 5| is held in backspacing position the carriage is free to be backspaced, such backspacing causing the defining pin H9 to move in a counter-clockwise direction, away from the bar |23 of the switch lil, coordinately and proportionally with the movement of the carriage. When the lcontrol member 5| is next released, the collar i3 is returned by its biasing to cause the feed nut to reengage with the feed screw and the-translating device to return to operative condition. However, the collar |09 remains in reproducing position and the clutch lever |43 remains held in its engaged position by the latch |5l. y reason of the clutch lever M3 .being held in engaged position the collar |55 is heid in its moved position to cause the control member 6|, upon its release, to be held in its mid position by the Contact of the lever |58 with the shoulder Ibi-i. Thus whenever the control member 5|, upon its release, assumes its mid position it is a visual indication that the denning means is in operative condition. Under some conditions, as herein'later described, the control member 5|, upon its release, is fully returned, thereby indicating that the denning means is in inoperative condition.

When in the reproduction of previously recorded matter the sound translating device is advanced to the position from which it was backspaced the defining pin ||9 is again brought into contact with the bar |23 of the switch |27. A further advance of the sound translating device will cause the spring arm l2@ to be moved, by the defining pin Ile, into Contact with the spring arm |25 to close the switch |27. Such closing of the switch causes a solenoid |65 to be actuated to cause the machine to he conditioned for recording. This solenoid is ironclad by a frame |56 mounted on a turned over lug ISE of the bracket |3|, and comprises a plunger it? coupled to the lug i6 of the collar Hill by a link |68 which is pivotally connected to the plunger |61 and lug H6 by the respective pins |67 and l5. When the switch |27 is closed the solenoid |65 is connected with the source of power to the machine, as is'shown in Figure 17; the plunger is then propelled rearwardly and the collar IBB is thereby turned into its recording position. In the terminal movement of the plunger IS'Lit impinges against an arm extension |59 of the latch |59 to release the latch from the clutch lever M3. When the clutch lever is unlatched it is returned by the spring |58 to its released or disengaged position and the control member 6|l is returned from its mid to released position bythe movement of the co11ar|ll5 which attends the release of the clutch lever-|63. Thus-"when the translating device is advanced a predetermined distance beyond the position from which it was backspaced, the machine is not only automatically conditioned for recording but the defining means is rendered inoperative and as an incident thereto the defining member ||1 is returned, as by the spring |20, to its neutral position to effect a complete restoration of the defining means.

It may be here noted that the switch |21, in connection with the defining means hereinbefore described, constitutes a differentially responsive means which is operable, at will, to distinguish between any selected position of the translating device in its path and a position of the translating device spaced or advanced therefrom, the switch being respectively rendered open and closed when the translating device is in the former and latter positions,

It is seen that the automatic conditioning of the sound translating device for recording and the placing o the defining means in inoperative condition, as well as the restoration thereof, occurs incidental to such predetermined advance of the sound translating device as will cause the switch |21 to be closed. In order that the automatic conditioning of the sound translating device for recording may occur almost immediately7 after the termination of the reproduction of the matter last recorded, the reproducer stylus 95 is positioned to the left of the recorder stylus, i. e., behind the recorder stylus in respect of the direction of carriage advance, as is shown in Figure 4, at a distance slightly less than the distance of the predetermined advance above mentioned, With this arrangement it is seen that if the operator desires to reproduce, or listen back on, a recorded area of a width equivalent to the transverse distance between the recorder and reproducer Styli, the operator need not .backspace the carriage but need only to move the control member 6| to backspacing position and then release it therefrom, to condition the translating device for reproducing and to render the defining means operative. The next advance of the carriage causes the dening pin iii) to .be moved onwardly to close the switch |21 and to thereby condition the machine for recording. However by reason of the transverse distance between the recorder and reproducer styli being less than the distance of carriage advance required to close the switch |21 the automatic conditioning for recording does not occur before the reproducer stylus has advanced at least beyond the recorded area.

It is seen that the machine is automatically conditioned for recording by a limited advance of the carriage subsequent to a manipulation of the control member 6| to backspacing position and its release therefrom. Since the translating device is in condition for reproducing during such limited advance of the carriage, there will arise a narrow vacant space on the record before the machine is reconditioned for recording, thereby avoiding any possible overlapping -of recorded areas. The length of this vacant space may be readily controlled as, for example, through an adjustment of the spacing between the spring arms |24 and |25 of the switch 121, which spacing denes the distance of carriage advance required to close the switch.

When the carriage is backspaced for the purpose of reproducing a selected portion of recorded matter it may not always be found desirable to reproduce the entire area traversed by the backspacing of the carriage. In this case after the operator has reproduced the selected recorded matter he may move the control member 6| to its backspacing position and then manually advance the carriage to a position wherein the reproducer stylus is in advance of the area last recorded, as is heretofore described. When the carriage reaches such position it is blocked against further advance, so long as the control member 6| is retained in its backspacing position, by the impingement of the dening pin ||9 against the bar I 23', which bar is limited in movement in the direction of advance of the pin H9 to substantially the contact position of the spring arm |24 with the spring arm |25 by reason of the arm |25 being backed by a stop member |69, made of suitable insulating material and shown in Figure 9. When the carriage is in such stopped position the solenoid is energized by reason of the closed condition of the switch |21, but so long as the control member 6| is held in backspacing position the collar |00 is held in reproducing position and the solenoid is thereby restrained from operating. However, upon the release of the control member the solenoid is operated to place the translating device in condition for recording and the defining means in inoperative condition. Coordinately with the placing of the dening means in inoperative condition, the switch |21 is opened to break the circuit of the solenoid and the defining means is restored to neutral position by the biasing of the spring arm |24 of the switch.

It is seen that so long as the defining means is in operative condition a manual advance of the carriage is limited to a predetermined distancei. e., substantially the distance required to close the switch |21. In order that the carriage may be advanced freely along the record the control member 6| is rendered movable to a constrained position beyond its backspacing positionwhich position is hereinafter called the inoperating position of the control member-to place the dening means in inoperative condition while yet retaining the feed nut disengaged from the feed screw and the translating device in inoperative condition. This inoperating position of the control member 6| is defined by the impingement of the finger-piece 64 against the lug 83 on the carriage arm. When the control member 6| is moved from backspacing to inoperating position the collars 68, |05, |06 and 13 are each turned in unison in a clockwise direction, but the collar |00 is held in reproducing position by the contact of the control lever |0| with the rearward edge of the opening |62 in the carriage, the cross pin I2 moving away from the pin lid and the torsional spring ||5 being exed by the turning of the collar |06 relative to the collar |00. Such turning of the collar 13 does not alter the condition of the translating device or the relative position of the feed nut to the feed screw since the translating device is maintained in inoperative condition by the upward biasing of the lifting finger 92 and the feed nut is maintained out of engagement with the feed screw by reason of the arm 15 remaining in contact with the relatively long cam 14. However, the turning of the collar |65, which accompanics the movement of the control member from baclrspacing to inoperating position, causes the clutch lever to be turned in a clockwise direction, through its engaged position and into an inoperating position shown in dash-dot lines in Figure 4, thereby disengaging the dening member III from its drive wheel |33 to place the defining means in inoperative condition. Thus so long as the control member 6I is held in inoperating position the carriage is freely manually movable along the record. Upon the release of the control member from inoperating position the machine is restored to the condition in which it is placed when the control member is moved to backspacing position and then released: the clutch lever |43 being returned by the spring |58 to engaged position; the translating device being returned to reproducing condition and the feed nut being re-engaged with the feed screw as by reason of the spring 'I|; and the control member 6I being returned to mid position by the spring 82.

The carriage is rendered free to be returned to start position by holding the control member 6I in either its backspacing or inoperating position. If the carriage is returned with the control member 6I in backspacing position the dening means is moved out of neutral position, but if the carriage is returned with the control member in inoperating position the defining means remains in inoperative condition. In either case, upon the release oi the control member the translating device is conditioned for reproducing. To place the translating device in condition for recording the control lever IIJI is manually moved into recording position. While the collar |66 is locked whenever the clutch lever I 3 is latched in engaged position, the control lever is yet movable into recording position by reason of the collar IIl being resiliently connected, as by the spring I I5, with the collar |66. When the control lever I 6I nears its recording position the plunger |67 impinges against the arm |69 of the latch IES to release the latch from the clutch lever |43, the deiining means then returning to inoperative condition.

Whenever the machine is used solely for reproducing purposes it is important that the defining means be retained in an inoperative condition to avoid any possible automatic shifting of the machine into a condition for recording. ance with my invention, when the machine is to be used solely for reproducing purposes, it is placed in reproducing condition by manually moving the control lever IGI from recording to reproducing position while the control member 6I is in released position. Such movement of the control lever IIII causes the translating device to be conditioned for reproducing, and also causes the collar |06 to be turned, by the contact of the pin I I4 with the cross pin I I2, relative to the collar |65. Such relative turning of the collar |06 causes a cam |66 provided thereon to contact the right end of the lever I 68 and to thereby tilt the lever, in a counter-clockwise direction as it is seen in Figure 10, against the force of a biasing spring I'I0 welded to the link |52 (see Figure 5). As the lever |68 is so tilted the left end thereof is moved downwardly out from between the shoulders |69 and |69 of the collar 68 to thereby operatively disconnect the control member 6I from the collar |65. The control member 6| may then be freely manipulated to disengage the feed nut from the feed screw and to render the translating device inoperative, to permit manual movement of the carriage, without rendering the deiining means operative, this inoperative condition of the defining means being visually indicated by the full return of the control member 6I upon its release. To restore the machine to its normal condition for recording it In accord-V is only necessary to manually return the control lever Il to recording position. As the control lever II is so returned the cam |66 is moved free from the lever |68, and the lever |68 is then restored by the spring I'II) to its normal position to operatively connect the control member 6I with the collar |65.

It is important that the translating device be placed in inoperative condition whenever a record is to be removed from or mounted on the mandrel. To force the operator to place the translating device in inoperative condition to permit a record change there is pivoted on the standard 3 by a pin I'II an obstructing arm II2 which extends forwardly to engage an annular groove I'IS in the handpiece lil, as shown in Figure l2. The obstructing arm H2 is normally retained in its engaged or forward position by means of a tension spring III! connected between an ear I on the arm and a pin I'I6 on the standard 6, the forward position of the arm being deiined by the contact of the ear IIE with a stop pin III on the standard. When the arm I'I2 engages the groove H3 the handpiece I4 is locked so that it cannot be moved inwardly to eject a record from the machine. When, however, the control member 6I is moved to backspacing or inoperating position the arm 86 on the rod 8, heref inbefore mentioned, impinges upon a short arm VIZ' of the arm I'IZ to move the obstructing arm VIZ out of the groove I 'I3 and out lof the path described by a change of record on the mandrel, thereby permitting a change of record-i. e., record mounting and removal-at will.

In Figures 13, 14, l5, 16 and 18 there is shown a second embodiment of my invention which is largely similar in structure to my first embodiment but which in function differs therefrom in the actions which are caused to automatically occur after the selective reproduction of previously recorded matter. When the control member 6I is moved to backspacing and inoperating positions the same actions occur as in my iirst embodiment; also upon the release of the control member from either backspacing or inoperating position, it returns to mid position to place the translating device in reproducing condition and the dening means in operative condition, the same as in my irst embodiment. However, when the control member 6| is so released to mid position and the translating device is fed in an advancing direction to reproduce matter previously recorded, the machine is automatically stopped when the reproduction of the recordation` last made is terminated; and when the start and stop hand switch 62 is next released to stop position the machine is automatically and completely restored to its normal condition for recording. In this mode of operation the operator is positively informed when the reproduction of the matter last recorded is terminated as by the stopping of the machine; moreover, when the machine is automatically conditioned for recording the recorder stylus is lowered into contact with a record which is then stationary to avoid possible stubbing of the stylus on the record.

Many elements, as wellas combinations of. elements, in this second embodiment are in all respects similar to corresponding elements of my rst embodiment. Where such similarity occurs between corresponding elements of the two embodiments they are given the same reference characters and are not further described except in their relation to new and slightly changed elements, which are given new reference char acters.

This second embodiment differs principally from my rst embodiment in respect of the means for controlling the release of the clutch lever |43 from engaged position and of the means for controlling the solenoid |65. Reference being had to Figures 14 and l5, it will be seen that a latch |13 for holding the clutch lever 43 in engaged position is directly controlled by the defining member ||1. The latch |18 is pivoted on the stud |63 by the screw |52, and is biased into its latched or operative position by a tension spring |19 connected between the latch and a pin |89 on the carriage. When the clutch lever |43 is in its released or inoperative position, the latch |18 is held in a tilted or inoperative position by the contact of a flat face |18 on the latch with the clutch arm |60, the latch snapping downwardly into operative position when the clutch lever |43 is moved into its engaged position. The latch |18 is operatively connected with the dening means by means of an arm |8| on the latch which extends to the right, rearwardly of the carriage, into the path of the dening pin ||9. Mounted in cantilever fashion on the arm |8| is a short upwardly biased spring |82 whose free end also extends into the path of the deiining pin |9. When the defining means is in inoperative condition the defining pin ||9 is urged downwardly against the spring |82 by reason of the biasing of the defining member ||1 as caused by the spring |20. While the biasing of the dening member is directed to urge the latch in a clockwise direction as viewed from the rightthe direction of movement of the latch from operative to inoperative positionthe biasing of the defining member is insucient to cause a substantial lexure of either the spring |19, which urges the latch into operative position, or of the spring |82 contacted by the defining pin 9. The position in which the defining member I |1 is thus held by the latching means for the clutch lever |93 constitutes the neutral or unoperated position of the deiining member, which is the position it occupies in Figure 14.

As the clutch lever |43 is moved into engaging position the clutch arm |60 is moved free from the face |18' and the latch |18 then snaps into operative position. It will be seen that when the clutch lever |43 is in engaged position the defining pin ||9 is held xed in position by reason of the engagement of the dening member ||1 with its drive wheel |33 (it being presumed that the translating device is not now in travel) and that therefore a movement of the latch |18 into operative position is resisted by the contact of the spring |82 with. the dening pin H9. However, the spring |19 is made strong enough to move the latch |18 into operative position against the resistance of the spring |82, the free end of the spring |82 being moved substantially into contact with the arm |8| as the latch |18 is moved to its operative position.

When the carriage is backspaced while the defining means is in operative condition the defining pin ||9 is moved away from the arm |8| in proportion to the distance of backspacing of the carriage. When the carriage is next advanced to the position from which it was backspaced the pin ||9 contacts the spring |82 and moves the `free end thereof substantially into contact with the arm |8| of the latch |18, the latch being yet retained by its biasing spring |19 in operative position. However as the carriage is next advanced a'predetermined distance 4beyond the position from which it was backspaced the defining member |1 is moved onwardly to cause the latch |18 to be released from the clutch lever |43. The clutch lever then returns to its released or disengaged position as by the spring |58 to free the defining member ||1 from itsdrive wheel |33, the defining member then returning as by the spring |82 to its neutral position.

It is again preferred that the reproducer stylus 99 be spaced to the left of the recorder stylus 89 as heretofore described in connection with my first embodiment, the transverse distance between the Styli being slightly less than the predetermined distance through which the carriage must be advanced, subsequent to a placing of the defining means into operative condition, to cause the defining means to be placed into inoperative condition. Thus when the machine is conditioned for the selective reproduction of previously recorded matter, as by moving the control member 6| to backspacing position, backspacing the carriage if necessary, and then releasing the control member, the defining means is automatically restored to inoperative condition when the carriage is next advanced, either manually or by the feed screw 25, to a position wherein the reproducer stylus is slightly in advance of the area last recorded upon. In accordance with my invention, when the carriage is manually advanced to such a position it is stopped therein, so long as the control member 6| is retained in backspacing position, by the defining pin ||9 being moved against the arm |8| to force the latch |18 against a stop pin |84, which pin defines the unlatched or inoperative position of the latch.

As the dening means is restored to inoperative condition a switch |85, which may be of a double-pole double-throw variety, is thrown to cause the stopping of the machine. The switch |85, which appears diagrammatically in Figures 15 and 18, is secured by a bracket 86 to the right wall of the carriage and comprises a pair of pole members |81 and |88 bridged together by a link |89 of suitable insulating material and respectively biased by a spring |963 into contact with contact members |9| and |92, as indicated in Figure 18. The pole members |81 and |88 may be moved against the direction of their biasing to respectively break contact with the contact members |9| and |92 and thereafter to make contact with contact members |93 and |94 by imparting rearward movement to a switch arm |95 which extends laterally through an opening |96 in the right wall of the carriage, the arm |95 being urged forwardly into the position it occupies in Figure l5 by the biasing of the switch.

The pole member |81 and its contact member 9| are serially connected in a line conductor |91 which connects one side of the plug 34 with the pole member 53 of the hand switch 52, the other contact member |93 which is associated with the pole member |81 being connected by a line conductor |98 to the contact member 54 of the hand switch 52. The pole member |81 normally contacts the contact point |9, by reason of its biasing, thereby normally rendering the hand switch 52 selectively operable to start and stop the machine as heretofore described. When the switch is thrown to bring the pole member |81 in contact with the contact member |93 a circuit is completed through the stop coil 46 of the actuating mechanism 44, the same as when the hand switch 52 is released to stop position, to disengage the clutch C and to thereby stop the ma` `length of the shaft.

moede-.ve

chine. Such throwing of the switch |85is made to occur as an incident to the placing of the defining means into inoperative condition as is lnow described.

Slidably mounted on the inner side of the left i wall of the carriage as by a. shoulder screw |99 is a bracket 200 having a front-to-back extending slot 2| through which the screw |99 slidably passes. The bracket 299 is provided with an L- shaped platform 292 (see Figure having the lower leg thereof pivotally connected by a pin 203 to an arm 2M aligned with the clutch lever |43 and secured to the shaft |65 of the clutch lever |23 at a point substantially midway of the platform 2&2 are provided turned-over ears 265 supporting a cross pin 29E on which is pivoted a narrow plate 29| extending forwardly of the platform 292. The plate 23| partially rests on platform 232 in a horizontal position and is moreover biased downwardly into such position by a cantilever spring 2&8 connected to the platform by the pins 29B. Carried by and extending through the plate 29| at a point centrally thereof is a pin 299 having a beveled face 209 on the lower end thereof which is adapted to catch` on an upward extension |95 of the switch arm |95 to throw the switch.

When the clutch lever M3 is moved to engaged position to place the defining means in opera- On the lower leg of the ifo tive condition, the shaft |45 is turned in a clockwise direction and the bracket 2% and the plate '207 carried thereon are each moved forwardly. As the plate 2i5`| is so moved the pin Eil@ slides over the extension |95' of the switch arm |95, the plate first tilting upwardly and then snapping downwardly as by the spring 299 to cause the pin 2939 to catch upon the switch arm |95. When the clutch lever N5 is subsequently released to place the defining means in inoperative condition, the plate Z is returned in a rearward direction to its initial position, the switch arm |95 being moved rearwardly by the pin 299 with the plate. The switch |85 is thus thrown to bring its pole member |87 into contact with its contact member |93 to stop the machine in the manner hereto-fore described.

When the machine is automatically stopped by the defining means, the hand switch 52 is yet in start position. As the operator next releases the hand switch to stop position the circuit of the solenoid |65 is closed with its power source to cause the machine to be conditioned for recording. It is seen that the solenoid |65 is oonnected by the link |68 to the collar lilil in the same manner as in my rst embodiment; the circuit of the solenoid, however, serially includes the pole member |88 and associated Contact point |94 of the switch |85, the pole member 53 and associated contact member 54 of the hand switch 52, and also the polemember |91 and associated contact point |93 of the switch |85. When the machine is automaticalh7 stopped by the placing of the defining means in inoperative condition, the pole member |81 and the pole member |88 make connection with the respective contact points |93 and |94 but the pole member 53 does not make connection with the contact member 54 until the hand switch 52 is released to stop position. The release of the hand switch 52 subsequent to the stopping of the machine is a normal act on-the part of the operator, and as an incident to such release the solenoid is energized to cause the collar ii tobe moved into its recording position, thereby conditioning the machine for recording.

When the machine is conditioned for recording the switch |35 is restored to its normal position into which it is `biased to break the `circuit of the solenoid. The means for causing this restoration of the switch comprises a substantially right angle lever 2|!! pivoted at its vertex by a screw 2|| to a stud 2|2 extending inwardly from the left wall of the carriage just below the link |68. Pivoted to the lever 2H) is a slotted stud 2|3 slidably engaging the left edge 291' of the plate 29|, the lever 2|!) being thus normally held by the plate 281 in such angular position that the leg 2|il" of the lever, which carries the stud 2|2, extends forwardly while the other leg 2|9 of the lever extends upwardly along the right side of the link |62. In the conditioning of the machine for recording the link |68 is moved rearwardly; when the link is moved through the final portion of its travel a cross pin 2 M carried by the link contacts the upwardly extending leg 2 lil" of the lever 2li) and tilts the lever in such a manner as to cause its forwardly extending leg 2id to be moved upwardly. Such tilting of the lever 2|@ causes theplate 299 to be also tilted upwardly and the pin 209 carried thereon to be released from the switch arm |95.

'I'he switch arm |95 then moves forwardly by I reason of its biasing to cause the pole members |37 and |88 to break connection with the contact points |93 and |94 and to thereafter make connection with contact points |9| and |92 (of which the contact point |92 is idle in the circuit). The circuit of the solenoid is thus broken and the circuit to the hand switch 52 is restored to render the hand switch operable to start and stop the machine as desired.

Thus it is seen that when the machine is conditioned for the selective reproduction of previously recorded matter and the translating device is next advanced through such. predetermined distance as to cause the reproducer stylus to'be moved in advance of the area last recorded upon, the defining means is placed in inoperative condition and the switch |85 is at the same time thrown to stop the machine. Vihen the hand switch 52 is neXt released to stop position the solenoid |65 is energized to cause the switch |85 to be restored and the translating device to be conditioned for recording, thereby placing the `machine in its normal recording condition.

Whenever the carriage is returned to initial position, the translating device is left in reproducing condition and the defining meansV is left in operative condition. Normally the machine will be next used for recording subsequent to such return of the carriage. To condition the machine for recording it is only necessary to manually move the control lever ||l| forwardly from reproducing to recording position. When the defining means is in operative condition the co1- lar |06 is held in position by the latched condition of the clutch lever |43. Thus, to permit such movement of the control lever i9! the collar |60 is resiliently connected by the spring ||5 to the collar |96, the same as in my rst embodiment (the spring H5 also permitting the collar Iil to be moved relative to the collar |02] as when the control member E! is .moved to inoperating position, as is hereinbefore described). As the control lever is moved to recording position the collar is moved relative to the collar |96 and the spring l5 is thereby flexed. However as the control leveriiil nears recording posi'- tion the latch |18 is released from the clutch lever |43 to cause the dening means to be restored to inoperative condition, the collar IBG then returning into normal position relative to the collar |00. To so release the latch |18 the plunger |61 of the solenoid |65 is operatively connected with the latch by means of a vertically extending lever 2|5 pivoted by a screw 2|6 to a stud 2|1 extending rightwardly from an arm 2|8 which extends rearwardly of the carriage (see Figures 4 and l5) The arm 2|8 may be part of a mounting bracket 2|9 for the solenoid |65, which bracket is secured to the left wall of the carriage by the screws |32, the same as the bracket |3| of my rst embodiment. The lower end 2|5 of the lever 2|5 slidably engages a turned over edge 22D provided on the arm |8| of the latch |18, and the upper end 2 5 of the lever extends slightly into the path of the plunger |61. When the plunger is moved rearwardly by the movement of the control lever into recording position, the plunger impinges against the upper end 2| 5 of the lever 2|5 to turn the lever slightly in a counter-clockwise direction as viewed from the left (see Figure 14), thereby causing the latch |18 to be released from the arm we of the clutch lever |43.

Although I have shown and described my invention in certain preferred embodiments, it will be understood that many modifications and changes may be made therein without departing from the scope of my invention, which I undertake to express according to the following claims.

I claim:

1. In a recording and reproducing phonograph l including a supporting device for a record and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the combination of a movable indicating member adapted for measuring the displacement of said one device from any position in its path; means holding said indicating member stationary in its path of indicating movement during normal recording operations of the phonograph; means manipulatable to backspace said one device for purposes of playing back portions of matter recorded on the record; and means, rendered effective by said manipulatable means in the movement thereof to backspace said one devicey for causing indicating movement to be imparted to said member in proportion to the amount of backspacing of the device.

2. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other, and drive means actuated in the normal operation of the phonograph to effect a steady progressive advance of said one device: the combination of manual means operable to interrupt the normal operation of the machine and to displace said one device lfrom a position of farthest advance; a movable indicating member for measuring the distance of displacement of said one device; means acting on said indicating member during normal operations of the phonograph to hold the member stationary in its path of indicating movement; a mechanism adapted for imparting indicating movement to said member in accordance with the displacing movements of said one device; and means to cause said mechanism to be put in operation by the operation of said manual means.

3. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other, and drive means coupled with said one device for advancing the same: the combination of a movable indicating member adapted for indicating the displacement of said one device from any position in its path; means acting on said indicating member during normal advance of said one device to hold the member stationary in its path of indicating movement; means manipulatable to uncouple said one device from said drive means whereby to permit manual displacing of the latter; and means, rendered eiective by said manipulatable means in the uncoupling of said one device from said drive means, to impart indieating movement to said indicating member in proportion to the amount of displacement of said one device.

4. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device frorn any position in its path, comprising an indicating member independently movably mounted of said one device and normally held stationary at a neutral position in its path of indicating movement, and a normally inoperative mechanism placeable into operative condition at any position of said one device to impart to the indicating member a movement in either direction in accordance with the displacement of the device from the position occupied by the same when the mechanism was put in operation; means associated with said translating device to condition it for recording and reproducing; means operable to backspace said one device for purposes of reproducing portions of recorded matter on a record held by said supporting device; and means, operatively connecting said mechanism with said conditioning and backspacing means and eiective only while said one device is backspaced and/or said translating device is in reproducing condition, for retaining said mechanism in operative condition.

5. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of a pair of movable indicating members normally held stationary in the paths of their indicating movements; means actuatable in one direction to impart a unitary movement to both said indicating members and in the other direction to impart a relative movement between said members; and a clutch engageable at will to drivingly connect said actuatable means with said one .device whereby displacements of the device in one direction are registered in terms of relative movement between said indicating members and displacements in the other direction in terms of a unitary movement of both said members. Y

6. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of two measuring members movably mounted for measuring movement independent from that of said one device; means normally holding said members in a neutral relationship and stationary in the path of their measuring movement; a drive for said members connectable at any position of said one device to cause one of said members to move in proportion to the amount of displacement of the device from the position which the device occupied when the drive was put in operation; a one-way coupling between said members permitting an independent movement of said one member in one direction out of said neutral relationship and causing the other of said members to move in unison with said one member in movements of the latter in the other direction out of said neutral relationship; and means, operatively associated with said other member and operated in response to the movement thereof, to disconnect said drive.

'7. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising two members movable relatively to each other out of a neutral relationship, and a mechanism placeable in operation at any position of said one device to cause a measuring movement to be produced between said members in either direction in accordance with the displacement of said one device from the position occupied by the same when the mechanism is put in operation; means associated with said translating device for adjusting it into inoperative condition and respective operative conditions for recording and re,- producing; and means rendered eiective by said adjusting means in response to a shifting of said translating device from one predetermined condition to another, for restoring said members to neutral relationship.

8. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising two members movable relatively to each other out of a neutral relationship, and a mechanism placeable in operation at any position of said one device to cause a measuring movement to be produced between said members in either direction in proportion to the amount and direction of displacement of said one device from the position occupied by the same when Vthe mechanism is put in operation; means associated with said translating device for adjusting it into inoperative condition and respective operative conditions for recording and reproducing; and means rendered elective by said adjusting means in response to shifting said device into a predetermined one of its conditions, for placing said mechanism out of operation and concurrently restoring said members to neutral relationship.

9. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path comprising a movable indicating member, means operative during normal progressive operations of the phonograph for hoiding said indicating member stationary in the path of its indicating movement at a neutral position therein, and a mechanism placeable into operation in any position of rsaid one device to cause a measuring movement of said indicating member to be produced in proportion to the amount of displacement of said one device from its position at the time the mechan ism is put in operation; and means to cause said indicating member to be restored to neutral position upon placing said mechanism out of operation.

10. In a phonograph 'including a record-supporting device and a translating device conditionable for recording and reproducing, one or'` said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path comprising a movable indicating member; means operative during normal progressive operations of the phonograph for holding said indicating member stationary in the path of its indicating movement at a neutral position therein` and a mechanism placeable into operation in any position of said one device to cause a measuring movement of said indicating member to be produced in proportion to the amount of displacement of said one device from the position occupied by the same when the mechanism is put in operation; means to condi.-

tion said translating device for reproducing and concurrently to place said mechanism in operation; and means, influenced by said indicating member in the movement thereof beyond said neutral position, for shifting said translating device into recording condition and concurrently placing said mechanism out of operation and retoring said indicating member to neutral posiion.

11. In a phonograph including a record-supporting device and a record-cooperating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising two members movable relatively to one another into and out 0f neutral relationship, and a mechanism having operative and inoperative conditions and eiective when in operative condition to produce a measuring movement between said members in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism is put in operation; and biasing means acting on said members and rendered eiTective automatically When said mechanism is put out of operation to restore the members to neutral relationship.

12. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the distance of backspacing of said one device from any position in its path, comprising a movable indicating member; means operative during normal progressive operations of the phonograph for holding said indicating member stationary in the path of its indicating movement, and a mechanism rendered operative upon a backspacing of said one device to produce a measuring movement of said indicating member in proportion to the amount of said backspacing; and means, controlled by said indicating member in response to a predetermined advance of said one device beyond the farthest advanced position reached by the device prior to said backspacing, for placing said mechanism out of operation.

13. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising a movable indicating member, means operative during normal progressive operations of the phonograph for holding said member stationary in the path of its indicating movement, and a mechanism having operative and inoperative conditions and adapted When in operative condition to produce a measuring movement of said indicating member in proportion to the amount of displacement of said one device from the position occupied by the dey vice when the mechanism was rendered operative; and means, controlled by said indicating member, for placing said mechanism into inoperative condition.

14. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising a movable indicatingV member, means operative during normal progressive operations of the phonograph for holding said member stationary in the path of its indicating movement, and a mechanism having operative and inoperative conditions and adapted when in operative condition to produce a measuring movement of said indicating member in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism Was rendered operative; means associated With said translating device to adjust it into recording and other conditions; and means, associated with said adjusting means and actuated in response to the placing of said translating device into recording condition, for placing said mechanism into inoperative condition.

15. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising a movable indicating member, means operative during normal progressive operations of the phonograph for holding said member stationary in the path of its indicating movement, and a mechanism having operative and inoperative conditions and. adapted when in operative condition to produce a measuring movement of said indicating member in proportion to the amount of displacement of said one device from the position occupied by the device When the mechanism was rendered operative; means associated With said translating device to adjust it selectively into inoperative condition and respective operative conditions for recording and ment of said one device from any position in its path, comprising a movable indicating member, means operative during normal progressive operations of the phonograph for holding said member stationary in the path of its indicating movement, and a mechanism having operative and inoperative conditions and adapted when in operative condition to produce a measuring movement of said indicating member in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism was rendered operative; means associated with said translating device for adjusting it into reproducing and other conditions; and means, associated with said adjusting means and actuated in the conditioning of said translating device for reproducing, for placing said mechanism out of operation.

1'7. In a phonograph including a record-supporting device and a record-cooperating trans-` lating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, comprising an indicating member mounted for indicating movement independent of the travelling movement of said one device, and a unitary drive transmission for said member placeable into operative condition, at Will, to cause said member to receive an indicating movement in either direction in accordance with the amount and direction of displacement of said one device from the position occupied by the device when the drive transmission is rendered operative; means to releasably hold said transmission in operative condition; and means, actuated by said indicating member in response to a predetermined measuring movement thereof, for releasing said holding means.

18. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other: the cornbination of means for measuring the displacement of said one device from amr position in its path, comprising an indicating member mounted for indicating movement independent of the travelling movement of said one device, and a unitary drive transmission for said member placeable into operative condition, at will, to cause said member to receive an indicating movement in either direction in accordance with the amount and direction of displacement of said one device from the position occupied by the device when the drive transmission is rendered operative; means to releasably hold said transmission in operative condition; means associated With said translating device to adjust it into recording and other conditions; and means to release said holding means upon conditioning said translating device for recording by said adjusting means.

19. In a phonograph including a record-supporting device and a translating device including means to condition it for recording and reproducing, one of said devices being advanceable and backspaceable along the other: the combination of a movable indicating member normally held stationary at a neutral position in the path of its indicating movement during normal progressive operations of the phonograph; a unitary drive transmission placeable into operative condition at any position of said one device to cause said member to receive an indicating movement out of said neutral position in either direction in accordance with the amount and direction of displacement of said one device from the position occupied by the device when the mechanism is put in operation; means operable to condition said translating device for reproducing and concurrently place said mechanism in operation; and means, influenced by said indicating member in the movement thereof in advance of said neutral position, for conditioning said device for recording and concurrently placing said transmission out of operation.

20. In a phonograph including a record-sup porting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path, placeable into operative condition at any one position of said one device; a control member operatively connected with said measuring means and movable from a released position to a constrained position to place the measuring means in operation; and means associated with said control member and eiiective when said measuring means is in operation to prevent the full return of said control member to released position.

21. In a phonograph including a record-supporting device and a translating device, one of said devices being manually advanceable and backspaceable along the other: the combination of a movable member; means operative during normal progressive operations of the phonograph for holding said member stationary at a neutral position in the path of its significant movement; means operable at any position of said one device to connect the device With said movable member whereby to cause the latter to be moved in proportion to the distance of displacement or said one device from the position occupied by the device when the connecting means was rendered operative; and stop means eective on said movable member to limit the displacement of said one device.

22. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other: the combination of meansl for measuring the displacement of said one device from any position in its path, comprising a movable indicating member, means operative during normal progressive operations of the phonograph for holding said member stationary at a neutral position in the path of its indicating movement and means operable at any position of said one device to connect the same with said indicating member whereby to cause the latter to be moved in proportion to the movement of the former; and means, associated with said indicating member, for limiting the distance of displacement of said one device.

23. In a phonograph including a record-supporting device and a record-cooperating translaty ing device, one of said devices being mounted for travelling movement, and drive means for said one device: the combination of a movable member normally held stationary in its path of significant movement; coupling means for drivingly connecting said movable member with said one device; means to releasably hold said coupling means in operative position; a releasable drive connection between said drive means and said one device; a control member operable to move said coupling means into operative position. and place the same under the iniluence of said holding means and concurrently to release said drive connection to free said one device for manual movement; a movement-limiting means for said movable member adapted to restrict the distance of manual movement of said one device from the position occupied by the device when said control member is operated to a predetermined value; and means, operated by said one device in the completion of the manual movement of the same through said predetermined distance, for releasing said holding means.

24. In a phonograph including a rotatable record-supporting device and a translating device,

one of said devices being advanceable and backspaceable along the other, and a drive for moving said one device and rotating said record-supporting device: the combination of means for measuring the displacement of said device from any position in its path, comprising a movable indicating member, means normally holding said indicating member stationary in its path of indicating movement, and a mechanism having operative and inoperative conditions and adapted when in operative condition to cause the indicating member to be moved in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism was rendered operative; a start-stop means operable to render said drive elTective and ineffective; and an operative connection between said start-stop means and said mechanism for causing the former to be actuated into stop position concurrently upon restoring the latter to inoperative condition.

25. In a phonograph including a rotatable record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other, and a drive for moving said one device and rotating said record-supporting device: the combination of means for measuring the displacement of said one device from any position in its path, comprising a movable indicating member, means normally holding said indicating member stationary in its path of indicating movement, and a mechanism having operative and inoperative conditions and adapted when in operative condition to cause the indicating member to be moved in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism is rendered operative; a start-stop means operable to render said drive effective and ineffective; and means, controlled by said indicating member in the advance movement thereof, for placing said start-stop means into stop position and concurrently rendering said mechanism inoperative.

26. In a phonograph including a rotatable record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other, and a drive for moving said one device and rotating said record-supporting device: the combination of means for measuring the displacement of said one device from any position in its path, comprising a movable indicating member, means normally holding said indicating member stationary at a neutral position in its path of indi-cating movement, and a mechanism having operative and inoperative conditions and adapted when in operative condition to cause the indicating member to b-e moved in proportion to the amount of displacement of said one device from the position occupied by the device when the mechanism is rendered operative; means associated with said drive and effective to stop the same; and means, controlled by said indicating member in the advance movement of the same beyond said neutral position, for actuating said stop means and concurrently restoring the indicating member to neutral position.

y 27. In a phonograph including a record-supporting device and a record-translating device, one of said devices being advanceable and backspaceabie along the other, and a drive for advancing said one device: the combination of a movable member for indicating the displacement of said one device from any position in its path; a

drive mechanism for said indicating member adapted to move the same in accordance with the movements of said one device and including a control member operable to place the mechanism into operative and inoperative conditions at will; a stop control for said drive normally held in run position; means actuated by said control member in rendering said mechanism operative for releasably coupling the control member With said stop control; means for restoring said mechanism to inoperative condition and concurrently moving said stop control to stop position; means to condition said device for recording and reproducing; and means, controlled by said conditioning means, for releasing said coupling means.

28. In a phonograph including a record-supporting and a record-translating device, one of said devices being advanceable and backspaceable along the other, and a drive for advancing said one device: the combination of a movable indicating member; a drive mechanism for said indicating member adapted to move the same in accordance with the movements of said one dcvice, and including a control member operable to place the mechanism into operative and inoperative conditions; a stop means for said drive normally held in run position and including a movable control member; means, actuated by said rst control member in the movement thereof to render said mechanism operative, for releasably coupling said rst control member to said second control member; means, controlled by said indicating member in the driven movement thereof, for restoring said mechanism to inoperative condition and concurrently operating said stop means to stop position; means associated with said translating device to condition it for recording and reproducing; and means, actuated by said conditioning means, for releasing said coupling means.

29. In a phonograph including a record-supporting and a record-translating device, one of said devices being advanceable and backspaceable along the other, and a drive for advancing said one device: the combination of a movable indicating member, a drive mechanism for said indicating member adapted to move the same in accordance With the movements of said one device and including a clutch member movable into engaged and disengaged positions to place the drive mechanism into and out of operation; means to condition said translating device for recording and reproducing, placed into reproducing position upon moving said clutch member to engaged position; a stop means for said drive, normally held in run position; a start-stop control efective on said drive when said stop means occupies run position; a releasable coupling between said clutch member and said stop means, rendered effective upon moving said clutch member to engaged position; means, controlled by said indicating member, for disengaging said clutch member and concurrently moving said stop means to stop position; and means, controlled by said start-stop control in the ensuing movement thereof to stop position, for actuating said conditioning means into recording position and concurrently releasing said coupling.

30. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other, and drive means for said one device: the combination of means for measuring the displacement of said one device from any position in its path including means operable at any one position of said one device to place the measuring means in operation; means to couple said drive means with said one device; means associated with said translating device to adjust it into operative and inoperative conditions; a unitary control means for and operatively connected to each said measuring, coupling and adjusting means; and manually operable means, associated with said unitary control means, for disconnecting the latter from said measuring means.

31. In a phonograph including a record-supporting device and a record-cooperating translating device, one of said devices being advanceable and backspaceable along the other, and drive means for said one device: the combination of means for measuring the displacement of said one device from any position in its path including means operable at any one position of said one device to place the measuring means in operation; means to couple said drive means with said one device; means associated with said translating device for adjusting it into respective operative conditions for recording and reproducing; a common control means for said measuring, coupling and adjusting means; and a separate control means operable to shift said translating device between its respective operative conditions and concurrently to render said common control means ineiective as to said measuring means.

32. In a phonograph including a record-supporting device and a translating device having recording and reproducing conditions, one of said devices being advanceable and backspaceable along the other: the combination of means for measuring the displacement of said one device from any position in its path including means operable at any position of said one device to place the measuring means in operation; a first control means, operatively connected with said translating device and measuring means, for conditioning said translating device for reproducing and concurrently placing said measuring means in operation; and a second control means selectively operable either to condition said translating device for recording and concurrently place said measuring means out of operation, or to condition said translating device for reproducing and concurrently render said first control means ineffective as to said measuring means.

33. In a phonograph including a record-supporting device and a translating device, one of said devices being advanceable and backspaceable along the other, and drive means operatively connectable with said one device to move the same: the combination of means for measuring the displacement of said one device from any position in its path including means operable at Will to place the measuring means in operation; means associated With said translating device to adjust it into operative and inoperative conditions; and a control member effective upon a single manipulation thereof to disconnect said drive means from said one device and to place said translating device into inoperative condition and said measuring means out of operation.

34. In a phonograph including a record-supporting device and a translating device including means to adjust it into operative and inoperative conditions, one of said devices being advanceable and backspaceable along the other, and drive means connectable With said one device to advance the same: the combination of means for measuring the displacement of said one device 

